Expandable Graphite – Purity: 95–97%, Size: 50 mesh

Description

Expandable Graphite – Purity: 95–97%, Size: 50 mesh

Expandable Graphite (also called exfoliated graphite) is a specially engineered form of natural graphite treated with intercalating agents, typically sulfuric acid. When exposed to heat, the graphite layers separate and expand dramatically, producing worm-like, porous expanded flakes that are several millimeters long.

This expansion process gives the material exceptional flame-retardant performance, thermal insulation, oxidation resistance, and chemical stability, making it highly valuable across a range of industries from fire safety and metallurgy to coatings, energy storage, and advanced composites.

Technical Properties

• Purity: 95–97%

• Particle Size: 50 mesh

• Form: Flake Powder

• Expansion Behavior: Rapid volumetric expansion when heated

• Appearance: Black, shiny flakes

Applications

Flame Retardants & Fire Protection

• Widely used in intumescent flame-retardant systems.

• Expands to form a protective thermal barrier under fire conditions.

• Enhances fire safety in plastics, foams, rubbers, textiles, and building materials.

Graphite Foil & Sealing Materials

• Expanded graphite flakes can be compressed into graphite foil, sheets, and gaskets.

• Offers chemical resistance, flexibility, and heat conduction, ideal for industrial sealing.

Metallurgical Uses

• Serves as a covering agent for molten metals and molds in foundry applications.

• Provides oxidation protection and insulation, improving process efficiency.

Coatings, Paints & Chemicals

• Used in paints, varnishes, and coatings for anti-corrosion and flame-retardant properties.

• Applied as an additive to improve lubricity and conductivity in specialized formulations.

Emerging Applications

• Investigated for energy storage devices (batteries and supercapacitors).

• Useful in environmental remediation and pollutant absorption.

• Potential role in advanced composites and thermal management systems.